Hi
There is quite a lot of information on the internet if you google jovian antenna. This site has a number of recordings of the sound bursts fo different events to help you know what to look for.
http://www.radiosky.com/rjcentral.html
The signal level however is only in the vicinty of .25 microvolts so it will not be readily noticeable. A directional dipole will give some gain, perhaps up to 10 db but the signals will still be masked largly by other noise.
Barry